← Back to summary See all parameters CONTREVOZ BOURG · Prémeyzel
SOGEDO LYON
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.4 0.2 – 1 0.008 ▲ Total Chlorinemg CL2/l 0.43 No limit 0.086
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 21.1 No limit 21.1 Hardnessmg CaCO3/l 184.4 80 – 459 184.4 Hardness fF 18.4 No limit 18.4 pH 7.6 6.5 – 9.5 7.6 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 431 ≤ 2,500 431 TDSmg/l 275.8estimated 0 – 1,199 275.8 Alkalinitymg CaCO3/l 220.5 No limit 220.5
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0 ≤ 0 0 eColiUFC/100ml 0 ≤ 0 0 BacteriasNMP/100ml 0 ≤ 0 0 EnterococcusUFC/100ml 0 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 2.8 ≤ 50 0.84
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.2 No limit 3.2 Calciummg/l 68.5 No limit 68.5 Chloridemg/l 3 ≤ 250 3
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 1Sampled Dec 2025 ≤ 5 1 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 1Sampled Dec 2025 ≤ 5 1 Chromiumμg/l 5Sampled Dec 2025 ≤ 50 5 Copperμg/l 10Sampled Dec 2025 ≤ 2,000 0.5 Ironμg/l 10Sampled Dec 2025 ≤ 200 10 Leadμg/l 2Sampled Dec 2025 ≤ 10 0.1 Nickelμg/l 5Sampled Dec 2025 ≤ 20 5
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered Total PFASug/L Not reported ≤ 0.1 — PFAS 4ng/l Not reported No limit — PFAS 21ng/l Not reported No limit —
Other Other Parameter Unfiltered tap water Allowed range Filtered Ammoniamg/l 0.01 No limit 0.003 Sulfatemg/l 3.1 No limit 3.1
Data from the French health inspection of drinking water (Ministry of Health, regional health agencies), per distribution unit. Quality ranges are based on WHO guidelines, EU Directive 2020/2184 and the French public health code.
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Data from the French health inspection of drinking water (Ministry of Health, regional health agencies), per distribution unit. Quality ranges are based on WHO guidelines, EU Directive 2020/2184 and the French public health code.
